So interest got the better of me over the weekend and I wanted to get to know a bit more about the settings that various K04 tunes run. Below is an overview of what I have found - I hope others find it interesting. Firstly I went out and collected a set of logs from my Entirely Stock S3 according to these guidelines by APR. http://www.goapr.com/support/datalogging.php (For anyone wishing to do similar I would change the 103-1 Current Fuel Pressure channel to "inlet air temperature" - This will show if your heatsoaked or intercooler is inefficient etc) The above confirmed to me that my car was in reasonable health. A generic HP = airflow/0.8 came out at an optimistic 274hp as an average over 6 runs... From a car which should be 265hp standard. Along with the good MAF reading, boost matching setpoint, Fuel Pressure controlled well, minimal timing retardation and no missfire's logged, I was happy that my car was in good health. Then I hit this goldmine thread of logs from a Badger 5 TFSI dyno day - thanks again to Bill and everyone who took part and created this data set. http://www.seatcupra.net/forums/showthread.php?t=392011 Headline Figures copied here to give an idea of what the different stages offer in terms of torque and power - note some anomalies. Code: name bhp torque map badgerwagen 369.6 351.3 REVO2 Mat Holman 361.7 333.7 REVO2+ Andrew Connelly 347.4 323.8 REVO2+ david cheung 345.9 338 APR2+ map1 Scott Ferrar 345 301.3 REVO2+ david cheung 344.4 359.3 APR2+ map2 mark cousins 341.5 333 APR 2+ rick humphreys 304.6 333 badger5 stg1 quintin rose 271.8 287.1 REVO1 TFSi sorted torque max to min Code: name bhp torque map david cheung 344.4 359.3 APR2+ map2 badgerwagen 369.6 351.3 REVO2 david cheung 345.9 338 APR2+ map1 Mat Holman 361.7 333.7 REVO2+ mark cousins 341.5 333 APR 2+ rick humphreys 304.6 333 badger5 stg1 Andrew Connelly 347.4 323.8 REVO2+ Scott Ferrar 345 301.3 REVO2+ quintin rose 271.8 287.1 REVO1 So I then got out excel and started making some comparisons. Firstly Requested Boost Actual Boost So here we can see as I would expect - higher stage of tune = higher boost levels. Worth Noting however the Revo Stage 1 car did not make it's requested boost - and ended overall with a low HP Figure - points to some kind of hardware issue on this particular car. Second point worth noting is the APR 2+ map has a much larger boost spike in the middle leading to the higher torque figures seen - although the requested boost doesn't ask for this spike. This would translate into a mid range kick feel whilst driving which some drivers may like. Then Onto Rail Pressure Only specified rail pressure plotted here for illustration - most of these cars are very close the specified value so I did not feel the need for another graph. Interestingly though the "APR 2+" data I had to plot here is much lower than a Revo tune. Even though APR Specify the need for the upgraded HPFP for 2+. The Revo 1 car undershoots it's target by around 4 Bar in the mid range- showing it is on the limit of the standard pump. Hence why the upgraded pump is needed for 2+ And finally for now Ignition Timing - Only a few logs here as thats all the data I have. [/URL] From here we can see that Most stage 1 tunes aren't moving the ignition timing away from stock - and I imagine most stage 2 cars would also be fairly similar. However the Stage 2 car logged here was running water meth which will drop the IAT's meaning that the advance can be pushed further before knock. Lambda Comparison for the Top 4 cars here. I hope this has made interesting reading for some of you. If anyone else has good data-logs to add in to the above I am happy to stick them in. A stock K03 set of APR style logs would be nice also to add in so we can see where a MK5 Gti sits.
